Participating countries

The following countries participated in the 5th IOAA:

1. Bangladesh
2. Belarus
3. Bolivia (unable to attend)
4. Brazil
5. Bulgaria
6. China (2 teams)
   
7. Colombia
8. Croatia
   
9. Czech Republic
10. Egypt (unable to attend)
    
11. Greece
12. Hungary
    
13. India
    
14. Indonesia
    
15. Iran (2 teams)
    
16. Kazachstan
17. Korea
    
18. Lithuania
19. Poland (2 teams)
    
20. Portugal
21. Romania
    
22. Russia
23. Serbia
    
24. Singapore
25. Slovakia
26. Sri Lanka
27. Thailand
28. Turkey (unable to attend)
29. Ukraine